JPS61150828A - Fuel tank device for car - Google Patents

Fuel tank device for car

Info

Publication number
JPS61150828A
JPS61150828A JP27708484A JP27708484A JPS61150828A JP S61150828 A JPS61150828 A JP S61150828A JP 27708484 A JP27708484 A JP 27708484A JP 27708484 A JP27708484 A JP 27708484A JP S61150828 A JPS61150828 A JP S61150828A
Authority
JP
Japan
Prior art keywords
tank
fuel
sub
main tank
supply pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP27708484A
Other languages
Japanese (ja)
Inventor
Yoshiro Yoshikawa
吉川　嘉郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Shatai Co Ltd
Original Assignee
Nissan Shatai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Shatai Co Ltd filed Critical Nissan Shatai Co Ltd
Priority to JP27708484A priority Critical patent/JPS61150828A/en
Publication of JPS61150828A publication Critical patent/JPS61150828A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/06—Fuel tanks characterised by fuel reserve systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03118—Multiple tanks, i.e. two or more separate tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned

Abstract

PURPOSE:To prevent fuel from being excessively fed into a main tank by forming a connecting member of a main tank to a sub-tank with both a fed pipe in which a feed pump is provided and a connecting pipe. CONSTITUTION:When a level sensor 42 inputs an operating signal into a changeover switch 44 by detecting fuel A, a feed pump 32 is operated to feed fuel A into a main tank 2 through a feed pipe 14. While the fuel level of the main tank 2 is higher than the height of a connecting pipe 12, fuel fed from a sub- tank 8 is returned to the sub-tank 8 through the connecting pipe 12. After that, when the sub-tank 8 emptied its fuel disabling the sensor 42 from detecting, the operation of the feed pump 32 is stopped.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、サブタンクからメインタンクへ燃料を供給す
る車両用燃料タンク装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vehicle fuel tank device that supplies fuel from a sub-tank to a main tank.

（従来の技術） 従来の車両用燃料タンク装置としては、例えば、実開昭
５７−１４１１１９号公報や実開昭５７−１４１１２０
号公報に記載されているようなものが知られている。(Prior Art) Conventional vehicle fuel tank devices include, for example, Japanese Utility Model Application Publication No. 57-141119 and Japanese Utility Model Application Publication No. 57-141120.
The one described in the publication number is known.

前記実開昭５７−１４１１１９号公報記載の装置は、燃
料送出管を有するメインタンクと、サブタンクと、両タ
ンク同士を連通させる一本の連通部材と、該連通部材に
設けられた供給ポンプと、前記メインタンク内に設けら
れ、燃料が検知されなくなると供給ポンプ作動信号を出
力するメイン側レベルセンサと、前記サブタンク内に設
けられ、燃料が検知されなくなると供給ポンプ作動停止
信号を出力するサブ側レベルセンサと、を備えたもので
あった。The device described in Japanese Utility Model Application Publication No. 57-141119 includes a main tank having a fuel delivery pipe, a sub-tank, a communication member that communicates both tanks with each other, and a supply pump provided on the communication member. a main-side level sensor that is installed in the main tank and outputs a supply pump operation signal when fuel is no longer detected; and a sub-side level sensor that is installed in the sub-tank and outputs a supply pump operation stop signal when fuel is no longer detected. It was equipped with a level sensor.

従って、メインタンク内の燃料のほとんどが燃料送出管
からエンジンへ送出され、メイン側レベルセンサが空気
中に露出されると、作動信号が出力され、供給ポンプが
作動して、サブタンク内の燃料がメインタンクへ供給さ
れる。Therefore, when most of the fuel in the main tank is delivered to the engine from the fuel delivery pipe and the main side level sensor is exposed to the air, an activation signal is output, the supply pump is activated, and the fuel in the sub tank is Supplied to the main tank.

その後、燃料が供給されてサブ側レベルセンサが空気中
に露出されると、作動停止信号が出力され供給ポンプの
作動が停止される。Thereafter, when fuel is supplied and the sub-side level sensor is exposed to the air, an operation stop signal is output and the operation of the supply pump is stopped.

次に、実開昭５７−１４１１２０号公報記載の装置は、
前記実開昭５７−１４１１１９号公報の装置のメインタ
ンク上部に、燃料を検知すると供給ポンプの作動を停止
させる作動停止信号を出力するメイン側上部レベルセン
サを追加した例である。Next, the device described in Japanese Utility Model Application Publication No. 57-141120 is
This is an example in which a main-side upper level sensor is added to the upper part of the main tank of the apparatus disclosed in Japanese Utility Model Publication No. 57-141119, which outputs an operation stop signal to stop the operation of the supply pump when fuel is detected.

従って、サブタンクからメインタンクへ燃料を供給して
いる際に、メイン側上部レベルセンナが燃料に浸るか、
もしくは、サブ側レベルセンサが空気中に露出されるか
すると１作動停止値号が出力され供給ポンプの作動が停
止される。Therefore, when fuel is being supplied from the sub tank to the main tank, the main side upper level sensor may be immersed in fuel.
Alternatively, if the sub-side level sensor is exposed to the air, a 1 operation stop value is output and the operation of the supply pump is stopped.

（発明が解決しようとする問題点） しかしながら、このような従来の燃料タンク装置にあっ
ては、以下に述べるような問題点があった。(Problems to be Solved by the Invention) However, such conventional fuel tank devices have the following problems.

実開昭５７−１４１１１９号公報記載の装置にあっては
、メインタンクとサブタンクが、供給ポンプを有する一
本の連通部材で連結され、かつ、供給ポンプの作動がサ
ブ側レベルセンサが空気中に露出されないと停止されな
いために。In the device described in Japanese Utility Model Application Publication No. 57-141119, the main tank and the sub-tank are connected by a single communication member having a supply pump, and the operation of the supply pump is controlled so that the sub-side level sensor is in the air. To not be exposed or stopped.

■　サブタンク容量はメインタンク容量よりも大きくで
きない。■ The sub tank capacity cannot be larger than the main tank capacity.

■　公報第２図（ロ）に示されるように、車体が傾く等
してメイン側センサが空気中に露出されると、メインタ
ンク内に燃料が十分残っているにもかかわらず、供給ポ
ンプが作動され、サブタンクよりメインタンクの容量以
上に燃料が供給されて、燃料漏れを□生じたり、供給ポ
ンプに過負荷を与えてしまったりすることがある。■ As shown in Figure 2 (b) of the bulletin, if the main side sensor is exposed to the air due to tilting of the vehicle body, the supply pump may stop working even though there is sufficient fuel remaining in the main tank. When activated, fuel may be supplied from the sub tank in excess of the capacity of the main tank, causing fuel leakage or overloading the supply pump.

実開昭５７−１４１１２０号公報記載の装置にあっては
、レベルセンサを３個も設けたため、製造コストが高く
なり、かつ、回路が複雑になる。In the device described in Japanese Utility Model Application Publication No. 57-141120, as many as three level sensors are provided, which increases the manufacturing cost and complicates the circuit.

（問題点を解決するための手段） 上述のような問題点を解決することを目的として本発明
はなされたもので、この目的達成手段として本発明の車
両用燃料タンク装置では、車体に燃料送出管を有するメ
インタンクが設けられ、該メインタンクにタンク上部同
士が連通部材により連通されたサブタンクが配置され、
前記連通部材にサブタンク内の燃料を前記メインタンク
に供給する供給ポンプが設けられた車両用燃料タンク装
置において、前記連通部材を連通管と供給、管とで形成
させ、前記供給ポンプを供給管側に設け、前記連通管の
メインタンク側開口を、前記メインタンクの燃料満タン
時の液面中央付近に配置させ、前記サブタンクの底部付
近に、前記供給ポンプの吸込口と、燃料を検知して供給
ポンプ作動信号を出力するレベルセンサと、を設けたこ
ととした。(Means for Solving the Problems) The present invention has been made for the purpose of solving the above-mentioned problems, and as a means for achieving this purpose, the vehicle fuel tank device of the present invention has a method for delivering fuel to the vehicle body. A main tank having a pipe is provided, and a sub-tank is arranged in the main tank, the upper parts of the tanks being connected to each other by a communication member,
In the vehicle fuel tank device in which the communication member is provided with a supply pump that supplies fuel in the sub-tank to the main tank, the communication member is formed by a communication pipe and a supply pipe, and the supply pump is connected to the supply pipe side. The main tank side opening of the communication pipe is arranged near the center of the liquid level of the main tank when the fuel tank is full, and the suction port of the supply pump and the fuel detection pipe are arranged near the bottom of the sub tank. A level sensor that outputs a supply pump activation signal is provided.

尚、液面中央付近とは、液面中央より水平方向、下方向
に多少の許容を含む部分を指す。Note that the vicinity of the center of the liquid level refers to a portion that includes some allowance in the horizontal direction and downward direction from the center of the liquid level.

（作　用） 従って、本発明の車両用燃料タンク装置では、サブタン
ク内のレベルセンサが燃料を検知すると供給ポンプが作
動され、供給管からメインタンクへ燃料を供給する。(Function) Therefore, in the vehicle fuel tank device of the present invention, when the level sensor in the sub-tank detects fuel, the supply pump is activated to supply fuel from the supply pipe to the main tank.

尚、メインタンク内の過剰な燃料は連通管でサブタンク
へ還される。Incidentally, excess fuel in the main tank is returned to the sub tank through a communication pipe.

声だ、連通管のメインタンク側開口をメインタンクの燃
料満タン時に、液面の上下方向への変位量が最も少ない
液面中央付近に配置させたために、液面の高さの変位に
よるサブタンクへの燃料の還流を起き難くさせることが
できる。Because the opening on the main tank side of the communication pipe is placed near the center of the liquid level where the amount of vertical displacement of the liquid level is the least when the main tank is full, the sub-tank is caused by the displacement of the liquid level. This makes it difficult for fuel to flow back into the tank.

（実施例） 以下、本発明の実施例を図面により詳述する。(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

まず、第１図及び第２図に示す第１実施例の構成につい
て説明する。First, the configuration of the first embodiment shown in FIGS. 1 and 2 will be explained.

２はメインタンクであって、車体４に設けられているも
ので、このメインタンク２は、燃料送出管６が挿通され
ている。A main tank 2 is provided in the vehicle body 4, and a fuel delivery pipe 6 is inserted through the main tank 2.

この燃料送出管６は、メインタンク２内の燃料Ａを燃料
ポンプ（図示せず）によって、エンジン（図示せず）へ
送出させるものである。This fuel delivery pipe 6 is for delivering fuel A in the main tank 2 to an engine (not shown) by a fuel pump (not shown).

８はサブタンクであって、プロペラシャフト１０を隔て
て、前記メインタンク２に対して並列に配設されている
もので、このサブタンク８は、連通部材としての連通管
１２と供給管１４とによって前記プロペラシャフト１０
の上方でメインタンク２とタンク上部同士が連通されて
いる。Reference numeral 8 denotes a sub-tank, which is disposed in parallel to the main tank 2 across the propeller shaft 10. propeller shaft 10
Above the main tank 2 and the upper part of the tank are communicated with each other.

前記連通管１２は、前記メインタンク２内へ車体４の外
側に設けられた燃料注入口１６から燃料を導く給油管１
８と一体に形成されたもので、メインタンク２上部に設
けられたメインタンク側フィラチューブ２０と、サブタ
ンク８上部に設けられたサブタンク側フィラチューブ２
２と、両フィラチューブ２０．２２を連結させた可撓性
を有するゴム製の連結パイプ２４と、で構成されている
。The communication pipe 12 is a fuel supply pipe 1 that leads fuel into the main tank 2 from a fuel inlet 16 provided on the outside of the vehicle body 4.
8, the main tank side filler tube 20 provided at the top of the main tank 2, and the sub tank side filler tube 2 provided at the top of the sub tank 8.
2, and a flexible rubber connecting pipe 24 connecting both filler tubes 20 and 22.

また、前記供給管１４は、前記連通管１２の下方に配設
されたもので、メインタンク２上部からタンク内下方へ
挿通されたメインタンク側給油チューブ２６と、サブタ
ンク８上部からタンク内下方へ挿通されたサブタンク側
給油チューブ２８と、両給油チューブ２６．２８を連結
させた可撓性を有するゴム製の連結パイプ３０と、で構
成されている。The supply pipe 14 is disposed below the communication pipe 12, and includes a main tank side refueling tube 26 inserted from the upper part of the main tank 2 to the lower part of the tank, and a main tank side refueling tube 26 inserted from the upper part of the sub tank 8 to the lower part of the tank. It is composed of the sub-tank side oil supply tube 28 inserted therethrough, and a flexible rubber connecting pipe 30 that connects both the oil supply tubes 26 and 28.

また、両連結パイプ２４．３０は、可撓性を有している
ために、走行時の振動等による両タンク２．８の相対位
置変化を吸収することができるものである。Furthermore, since both connecting pipes 24 and 30 have flexibility, they can absorb changes in the relative positions of both tanks 2 and 8 due to vibrations and the like during traveling.

３２は供給ポンプであって、前記サブタンク８内の燃料
Ａをメインタンク２へ供給させるもので、この供給ポン
プ３２は、前記供給管１４のサブタンク側端部に接続さ
れ、かつ、サブタンク８底部にその吸込口３４をサブタ
ンク８の底部に配置させて設けられている。32 is a supply pump that supplies the fuel A in the sub-tank 8 to the main tank 2; this supply pump 32 is connected to the sub-tank side end of the supply pipe 14, and is connected to the bottom of the sub-tank 8 The suction port 34 is arranged at the bottom of the sub-tank 8.

３８は連通管１２のメインタンク側開口であって、メイ
ンタンク２内を満タンにした時の液面中央位置の少し下
方に配置されているもので、このメインタンク側開口３
８は、前記給油管１８と一体のメインタンク側フィラチ
ューブ２０から下方に向けて開口されている。38 is the main tank side opening of the communication pipe 12, which is located slightly below the center position of the liquid level when the main tank 2 is full;
8 is opened downward from a main tank side filler tube 20 that is integrated with the oil supply pipe 18 .

尚、メインタンク側開口３８からはサブタンク８側へ下
方に傾斜して開口管３９が延設されている。Incidentally, an opening pipe 39 extends from the main tank side opening 38 toward the sub tank 8 side, slanting downward.

また、前記連通管１２のサブタンク側開口端４０は、下
向きに湾曲されて開口されている。Further, the sub-tank side open end 40 of the communication pipe 12 is curved downward and opened.

４２はレベルセンサであって、燃料Ａを検知して供給ポ
ンプ作動信号を出力するもので、このレベルセンサ４２
は、前記供給ポンプ３２と隣接して、サブタンク８の底
部に設けられ、切替スイッチ４４に接続されている。42 is a level sensor that detects fuel A and outputs a supply pump operation signal;
is provided at the bottom of the sub-tank 8 adjacent to the supply pump 32 and connected to a changeover switch 44 .

尚、前記レベルセンサ４２は、前記サブタンク８内の燃
料Ａの液面が燃料検知位置よりも下がると、供給ポンプ
作動信号の出力を停止する。Incidentally, the level sensor 42 stops outputting the supply pump operation signal when the liquid level of the fuel A in the sub-tank 8 falls below the fuel detection position.

また、前記切替スイッチ４４は、イグニッションスイッ
チ５０に接続されており、前記供給ポンプ作動信号が入
力されると、コイル４６が励磁され、接点４８を閉じる
。Further, the changeover switch 44 is connected to an ignition switch 50, and when the supply pump activation signal is input, the coil 46 is excited and the contact 48 is closed.

５２はメインタンク側ベントチューブ、５４はサブタン
ク側ベントチューブであって、前記燃料注入口１６から
両タンク２，８内へ燃料Ａを注入させる際に、両タンク
２，８内の空気を燃料注入口１６から大気へ排出させる
もので、この両ベントチューブ５２．５４は、一端が両
タンク２，８に、他端が給油管１８の燃料注入口１６に
近い位置にそれぞれ開口されている。52 is a main tank side vent tube, 54 is a sub tank side vent tube, and when injecting fuel A into both tanks 2 and 8 from the fuel inlet 16, the air in both tanks 2 and 8 is used to inject the fuel. The vent tubes 52 and 54 are opened to the tanks 2 and 8 at one end, and at a position close to the fuel inlet 16 of the fuel supply pipe 18 at the other end.

次に、第１実施例の作用について説明する。Next, the operation of the first embodiment will be explained.

燃料注入口１６から燃料Ａを注入する際には、燃料Ａは
給油管１８を伝って、連通管１２のメインタンク側開口
３８とサブタンク側開口端４０とから両タンク２．８へ
注入され、液面が両ベントチューブ５２．５４に達する
まで注入することができる。When injecting fuel A from the fuel inlet 16, the fuel A is injected into both tanks 2.8 through the main tank side opening 38 and the sub tank side opening end 40 of the communication pipe 12 along the fuel supply pipe 18, Injection can be continued until the liquid level reaches both vent tubes 52,54.

次に、第２図に示すように、イグニッションスイッチ５
０を閉じると、レベルセンサ４２が作動され、レベルセ
ンサ４２は燃料Ａを検知して供給ポンプ作動信号を出力
する。Next, as shown in FIG.
When 0 is closed, the level sensor 42 is activated, and the level sensor 42 detects the fuel A and outputs a supply pump activation signal.

そして、切替スイッチ４４に供給ポンプ作動信号が入力
されると、接点４８が閉じられ、供給ポンプ３２に通電
され、供給ポンプ３２の作動によって、燃料Ａが供給管
１４を通じてメインタンク２へ供給される。When the supply pump activation signal is input to the changeover switch 44, the contact 48 is closed, the supply pump 32 is energized, and the operation of the supply pump 32 supplies fuel A to the main tank 2 through the supply pipe 14. .

尚、メインタンク２の液面の高さが、連通管１２よりも
上もしくは同じ高さにある間は、サブタンク８から供給
された燃料Ａは連通管１２からサブタンク８へ還流され
る。Note that while the liquid level of the main tank 2 is above or at the same height as the communication pipe 12, the fuel A supplied from the sub-tank 8 is returned from the communication pipe 12 to the sub-tank 8.

その後、サブタンク８内の燃料Ａが無くなりレベルセン
サ４２に検知されなくなると、供給ポンプ作動信号の出
力が停止され、切替スイッチ４４の接点４８が開かれ、
供給ポンプ３２の作動が停止される。After that, when the fuel A in the sub-tank 8 runs out and is no longer detected by the level sensor 42, the output of the supply pump operation signal is stopped, and the contact 48 of the changeover switch 44 is opened.
Supply pump 32 is deactivated.

また、第２図の鎖線ａ、ｂに示すように、サブタンク８
の液面がサブタンク側開口端４０よりも下にある状態で
、車体４の傾きでメインタンク２の液面が傾いても、メ
インタンク側開口３８を満タン時の液面中央の少し下方
に設けているため、液面の高さ変動が殆どなく、サブタ
ンク８へ還流され難い。In addition, as shown in chain lines a and b in FIG. 2, the sub tank 8
Even if the liquid level of the main tank 2 is tilted due to the tilt of the vehicle body 4 when the liquid level of the main tank 2 is below the sub-tank side opening end 40, the main tank side opening 38 can be moved slightly below the center of the liquid level when the tank is full. Because of this, there is almost no fluctuation in the height of the liquid level, and it is difficult for the liquid to flow back into the sub-tank 8.

また、車体４の振動等によるメインタンク２とサブタン
ク８との相対位置変動によって連通管１２及び供給管１
４に与えられる変位は、再連結パイプ２４．３０で吸収
することができる。In addition, due to fluctuations in the relative positions of the main tank 2 and sub-tank 8 due to vibrations of the vehicle body 4, etc., the communication pipe 12 and the supply pipe 1
4 can be absorbed by the reconnection pipe 24.30.

次に、第３図に示す第２実施例について説明する。Next, a second embodiment shown in FIG. 3 will be described.

この実施例は、メインタンク側開口３８をメインタンク
側フィラチューブ２０の上部に開口させた例である。This embodiment is an example in which the main tank side opening 38 is opened at the upper part of the main tank side filler tube 20.

従って、燃料注入口１６から燃料Ａを注入すると、燃料
Ａは連通管１２のサブタンク側開口端４０からサブタン
ク８へ注入され、サブタンク８の液面がサブタンク側開
口端４０よりも高くなった後に、メインタンク側聞口３
８からメインタンク２へ注入される。Therefore, when fuel A is injected from the fuel inlet 16, the fuel A is injected into the sub-tank 8 from the sub-tank side open end 40 of the communication pipe 12, and after the liquid level of the sub-tank 8 becomes higher than the sub-tank side open end 40, Main tank side port 3
8 into the main tank 2.

次に、第４図に示す第３実施例について説明する。Next, a third embodiment shown in FIG. 4 will be described.

この実施例は、給油管１８と連通管１２のメインタンク
側フィラチューブ２０を別体に設けて、該メインタンク
側フィラチューブ２０の端部をメインタンク側開口３８
とし、かつ、サブタンク８底部に凹部５６を形成させ、
該凹部５６に供給ポンプ３２及びレベルセンサ４２を配
設させた例である。In this embodiment, the fuel supply pipe 18 and the main tank side filler tube 20 of the communication pipe 12 are provided separately, and the end of the main tank side filler tube 20 is connected to the main tank side opening 38.
and forming a recess 56 at the bottom of the sub-tank 8,
This is an example in which a supply pump 32 and a level sensor 42 are disposed in the recess 56.

従って、燃料注入口１６から燃料Ａを注入すると、メイ
ンタンク２に注入され液面がメインタンク側開口３８に
達した後に、サブタンク８へも連通管１２を通って注入
される。Therefore, when fuel A is injected from the fuel inlet 16, it is injected into the main tank 2, and after the liquid level reaches the main tank side opening 38, it is also injected into the sub tank 8 through the communication pipe 12.

また、レベルセンサ４２を凹部５６に配設させたため、
車体４の傾斜による液面の変位でレベルセンサ４２が空
気中に露出され、供給ポンプ作動信号の出力が停止され
ることを起き難くさせることができる。Furthermore, since the level sensor 42 is disposed in the recess 56,
It is possible to prevent the level sensor 42 from being exposed to the air due to a displacement of the liquid level due to the inclination of the vehicle body 4, thereby preventing the output of the supply pump operation signal from being stopped.

尚、第２実施例及び第３実施例の他の構成及び作用は第
１実施例と同様であるので説明を省略する。Note that the other structures and functions of the second and third embodiments are the same as those of the first embodiment, so their explanations will be omitted.

以上、本発明の実施例を図面により詳述してきたが、具
体的な構成はこの実施例に限られるものではなく、本発
明の要旨を逸脱しない範囲における設計変更等があって
も本発明に含まれる。Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

例えば、メインタンク側開口３８は、メインタンク内の
燃料満タン時の液面中央付近に配置されていればよく、
液面中央位置より、水平、下方方向に多少の誤差があっ
てもよい。For example, the main tank side opening 38 may be located near the center of the fuel level in the main tank when the tank is full.
There may be some error in the horizontal and downward directions from the center position of the liquid level.

また、供給ポンプ３２は、供給ポンプ吸込口３４がサブ
タンク８の底部に開口されていれば供給管１４のどの位
置に設けてもよい。Further, the supply pump 32 may be provided at any position on the supply pipe 14 as long as the supply pump suction port 34 is opened at the bottom of the sub-tank 8.

（発明の効果） 以上、述べたように本発明の車両用燃料タンク装置によ
れば、連通部材を供給ポンプが設けられた供給管と、連
通管と、の２本で形成し、メインタンクの容量を上回っ
た燃料はサブタンクへ還流されるようにしたために、サ
ブタンク容量をメインタンク容量よりも大きくすること
が可能となり、かつ、メインタンクへ燃料が過剰に供給
されて燃料漏れを生じたり、供給ポンプに過負荷を与え
てしまったりすることがないという効果が得られる。(Effects of the Invention) As described above, according to the vehicle fuel tank device of the present invention, the communication member is formed of two pipes, the supply pipe provided with the supply pump and the communication pipe, and the main tank is connected to the main tank. Since fuel that exceeds the capacity is returned to the sub-tank, it is possible to make the sub-tank capacity larger than the main tank capacity, and prevents fuel from being supplied excessively to the main tank, causing fuel leaks, This has the effect of not overloading the pump.

また、レベルセンサは１個しか必要としないので、製造
コストを低くすることができ、かつ、回路も単純にする
ことができる。Furthermore, since only one level sensor is required, manufacturing costs can be reduced and the circuit can be simplified.

また、レベルセンサをサブタンクの底部付近に設けたた
め、サブタンクに燃料゛が入っている間は供給ポンプの
作動信号の出力の停止は行なわれ難く、供給ポンプ及び
その作動切替スイッチ類を摩耗し難くすることができる
。In addition, since the level sensor is installed near the bottom of the sub-tank, it is difficult to stop the output of the supply pump's operation signal while the sub-tank is filled with fuel, making it difficult to wear out the supply pump and its operation selector switches. be able to.

また、連通管を通ってメインタンクからサブタンクへ燃
料が還流し難くしたため、空気中に露出されているレベ
ルセンサが再び燃料に浸って作動信号を出力することを
起き難くすることで、供給ポンプの作動・停止の切替頻
度を少なくすることができる。In addition, by making it difficult for fuel to flow back from the main tank to the sub tank through the communication pipe, the level sensor exposed to the air is less likely to be immersed in fuel again and output an activation signal. The frequency of switching between operation and stop can be reduced.

さらに、上述の効果に加えて、第３実施例にあっては、
車体の傾斜によって、サブタンク内の燃料がタンクの左
右に片寄った際にも、燃料が凹部に溜まるようにしたた
めに、レベルセンサから供給ポンプ作動信号が出力され
る頻度を極力減少させることができ、それによって、切
替スイッチのＯＮ・ＯＦＦ切替頻度及び供給ポンプの作
動・停止の切替頻度を極力減少させることができるとい
う効果が得られる。Furthermore, in addition to the above-mentioned effects, in the third embodiment,
Even when the fuel in the sub-tank is shifted to the left or right side of the tank due to the tilt of the vehicle body, the fuel collects in the recess, making it possible to reduce as much as possible the frequency at which the supply pump operation signal is output from the level sensor. As a result, it is possible to reduce as much as possible the frequency of ON/OFF switching of the changeover switch and the switching frequency of activation/stop of the supply pump.

【図面の簡単な説明】[Brief explanation of drawings]

第１図及び第２図は本発明第１実施例の車両用燃料タン
ク装置を示す断面図、第３図は本発明第２実施例の車両
用燃料タンク装置を示す断面図、第４図は本発明第３実
施例の車両用燃料タンク装置を示す断面図である。 ２・・・メインタンク ８・・・サブタンク １２・・・連通管 １４・・・供給管 ３２・・・供給ポンプ ３４・・・供給ポンプ吸込口 ３８・・・メインタンク側開口 ４２・・・レベルセンサ Ａ・・・燃料1 and 2 are cross-sectional views showing a vehicle fuel tank device according to a first embodiment of the present invention, FIG. 3 is a cross-sectional view showing a vehicle fuel tank device according to a second embodiment of the present invention, and FIG. 4 is a cross-sectional view showing a vehicle fuel tank device according to a second embodiment of the present invention. FIG. 7 is a sectional view showing a vehicle fuel tank device according to a third embodiment of the present invention. 2... Main tank 8... Sub tank 12... Communication pipe 14... Supply pipe 32... Supply pump 34... Supply pump suction port 38... Main tank side opening 42... Level Sensor A...Fuel

Claims (1)

【特許請求の範囲】 １）車体に燃料送出管を有するメインタンクが設けられ
、 該メインタンクにタンク上部同士が連通部材により連通
されたサブタンクが配置され、 前記連通部材にサブタンク内の燃料を前記メインタンク
に供給する供給ポンプが設けられた車両用燃料タンク装
置において、 前記連通部材を連通管と供給管とで形成させ、前記供給
ポンプを供給管側に設け、 前記連通管のメインタンク側開口を、前記メインタンク
の燃料満タン時の液面中央付近に配置させ、 前記サブタンクの底部付近に、前記供給ポンプの吸込口
と、燃料を検知して供給ポンプ作動信号を出力するレベ
ルセンサと、を設けたことを特徴とする車両用燃料タン
ク装置。[Scope of Claims] 1) A main tank having a fuel delivery pipe is provided in the vehicle body, and a sub-tank is disposed in the main tank, the upper portions of which are connected to each other by a communication member, and the fuel in the sub-tank is transferred to the communication member. In a vehicle fuel tank device equipped with a supply pump that supplies a main tank, the communication member is formed by a communication pipe and a supply pipe, the supply pump is provided on the supply pipe side, and the main tank side opening of the communication pipe is arranged near the center of the liquid level of the main tank when the fuel tank is full, and near the bottom of the sub-tank is a suction port of the supply pump, and a level sensor that detects fuel and outputs a supply pump activation signal. A fuel tank device for a vehicle, characterized in that it is provided with.
JP27708484A 1984-12-25 1984-12-25 Fuel tank device for car Pending JPS61150828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27708484A JPS61150828A (en) 1984-12-25 1984-12-25 Fuel tank device for car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27708484A JPS61150828A (en) 1984-12-25 1984-12-25 Fuel tank device for car

Publications (1)

Publication Number Publication Date
JPS61150828A true JPS61150828A (en) 1986-07-09

Family

ID=17578553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27708484A Pending JPS61150828A (en) 1984-12-25 1984-12-25 Fuel tank device for car

Country Status (1)

Country Link
JP (1) JPS61150828A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772315A (en) * 1988-01-04 1988-09-20 Gte Products Corporation Hydrometallurgical process for producing finely divided spherical maraging steel powders containing readily oxidizable alloying elements
US4778517A (en) * 1987-05-27 1988-10-18 Gte Products Corporation Hydrometallurgical process for producing finely divided copper and copper alloy powders
JPS63166833U (en) * 1987-04-20 1988-10-31
US4787934A (en) * 1988-01-04 1988-11-29 Gte Products Corporation Hydrometallurgical process for producing spherical maraging steel powders utilizing spherical powder and elemental oxidizable species
US4859237A (en) * 1988-01-04 1989-08-22 Gte Products Corporation Hydrometallurgical process for producing spherical maraging steel powders with readily oxidizable alloying elements
JPH0238327U (en) * 1988-09-08 1990-03-14
US4927456A (en) * 1987-05-27 1990-05-22 Gte Products Corporation Hydrometallurgical process for producing finely divided iron based powders
FR2640556A1 (en) * 1988-12-16 1990-06-22 Peugeot Method and device for controlling the operation of a pump for transferring fuel between an auxiliary chamber and a main chamber of a tank, particularly of a motor vehicle
US5102454A (en) * 1988-01-04 1992-04-07 Gte Products Corporation Hydrometallurgical process for producing irregular shaped powders with readily oxidizable alloying elements
US5114471A (en) * 1988-01-04 1992-05-19 Gte Products Corporation Hydrometallurgical process for producing finely divided spherical maraging steel powders
JPH0518937U (en) * 1991-08-27 1993-03-09 三菱自動車工業株式会社 Structure of filler pipe for dual fuel tank
US5197443A (en) * 1991-06-13 1993-03-30 Parker Hannifin Corporation Fuel system for diesel truck
KR100333875B1 (en) * 1999-11-19 2002-04-25 류정열 Fuel tank assembly of an automobile for both gas and liquid fuel
KR100717313B1 (en) 2005-12-10 2007-05-15 현대자동차주식회사 A fuel tank for vehicles
JP2012144163A (en) * 2011-01-12 2012-08-02 Yanmar Co Ltd Working vehicle
CN110194054A (en) * 2018-02-26 2019-09-03 丰田自动车株式会社 The fuel tank apparatus of vehicle

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63166833U (en) * 1987-04-20 1988-10-31
US4927456A (en) * 1987-05-27 1990-05-22 Gte Products Corporation Hydrometallurgical process for producing finely divided iron based powders
US4778517A (en) * 1987-05-27 1988-10-18 Gte Products Corporation Hydrometallurgical process for producing finely divided copper and copper alloy powders
US5102454A (en) * 1988-01-04 1992-04-07 Gte Products Corporation Hydrometallurgical process for producing irregular shaped powders with readily oxidizable alloying elements
US4787934A (en) * 1988-01-04 1988-11-29 Gte Products Corporation Hydrometallurgical process for producing spherical maraging steel powders utilizing spherical powder and elemental oxidizable species
US4772315A (en) * 1988-01-04 1988-09-20 Gte Products Corporation Hydrometallurgical process for producing finely divided spherical maraging steel powders containing readily oxidizable alloying elements
US5114471A (en) * 1988-01-04 1992-05-19 Gte Products Corporation Hydrometallurgical process for producing finely divided spherical maraging steel powders
US4859237A (en) * 1988-01-04 1989-08-22 Gte Products Corporation Hydrometallurgical process for producing spherical maraging steel powders with readily oxidizable alloying elements
JPH0238327U (en) * 1988-09-08 1990-03-14
FR2640556A1 (en) * 1988-12-16 1990-06-22 Peugeot Method and device for controlling the operation of a pump for transferring fuel between an auxiliary chamber and a main chamber of a tank, particularly of a motor vehicle
US5197443A (en) * 1991-06-13 1993-03-30 Parker Hannifin Corporation Fuel system for diesel truck
JPH0518937U (en) * 1991-08-27 1993-03-09 三菱自動車工業株式会社 Structure of filler pipe for dual fuel tank
KR100333875B1 (en) * 1999-11-19 2002-04-25 류정열 Fuel tank assembly of an automobile for both gas and liquid fuel
KR100717313B1 (en) 2005-12-10 2007-05-15 현대자동차주식회사 A fuel tank for vehicles
JP2012144163A (en) * 2011-01-12 2012-08-02 Yanmar Co Ltd Working vehicle
CN110194054A (en) * 2018-02-26 2019-09-03 丰田自动车株式会社 The fuel tank apparatus of vehicle
JP2019147404A (en) * 2018-02-26 2019-09-05 トヨタ自動車株式会社 Fuel tank device for vehicle

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